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Posts: 1316
Feb 17 05 12:52 AM
Astros Fan
Quote:-- CO2 levels, as skipdog points out, are at their highest level in hundreds of thousands of years.
Quote:Is human-generated CO2 contributing to global warming? Absolutely.
Quote:Although I can understand people still arguing the causes of global warming, the fact that it is occurring is grounded in a lot of observational evidence.
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